Telegraphy.



B. sognoFvFi TELEGHAPHY.

APPLICATION FILE-ID JULY 6, 1914.

L1 I Patented Oct fi;

v I m iv-iv 3 SHIEQETS' SHEET 1.

' mamas.

sensors, or MILWAUKEE, wIsooNsrN, ASSIGNOR TO UNrvEEsAL INDICATOR COMPANY, OF MILWAUKEE, WIsooNsIN.

TEIiEGRAPI-IY.

To all whom it may-concern:

Be'it known that l, BORNETT L. BOBROFF, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented cer-- tain new and useful Improvements in Te-' accompanying drawings and pointed out in the claims of this specification, its object being to improve the dial telegraph apparatus set forth in my application for Letters Pat ent filed February 9, 1914, Serial No. 817541. F igure 10f the drawings represents a partly sectional elevation of dial telegraph apparatus in accordance with my invention, the section being indicated by line ,11 in the next described illustration; Fig. 2, a plan view .of the apparatus partly in horizontal section; Fig. 3, a partly sectional elevation of a detail 'of' the apparatus indicated by line 3-3 in Fig. 2; Fig. 4, a similar view indicated by line 4-4 in Fig. 2; Fig. 5, a cross-section view of a fragment of the apparatus, this view being indicated by line 5-5 in Fig. 2; Fig. 6, a side elevationof the dial of the apparatus; Fig. 7, a similar view of an indicator plate of the apparatus; Fig. 8, a diagram illustrating electric-wiring of the apparatus, and Fig. 9, another diagram illustratingv an adaptation of the apparatus to oflice and directory board service.

Referring by numerals and letters to the drawings, 9 indicates a support of wood or other suitable material upon whichthe base 10 of the herein described apparatus is mounted, said base being provided with standards 11, 12, 13 and 14.

Journaled in the standards 11 and 12 is a spindle 15, and rigid on an angular. end of the spindle is an indented hub of a dial 16, which dial is observable through an opening 17 in a directory board or the front of a casing behind which the remainder of the apparatus'is concealed. v v

ill. directory board 18 and a casing 19 are shown in Fig. 9. Words and numerals are displayed at intervals in a circle upon the face of the dial, the words being In and Specification of Letters Patent.

Out and the numerals l to 12 inclusive, as shown in Flg. 6.

Fast on the spindle 15 is a ratchet-wheel 20 engaged by a detent-end 21 of a spring controlled armature 21 of an electro-magnet,

Patentedct.2fi,1915. Application filed July 6,1914. Serial No. 849,266.

notches or apertures corresponding in numher to the indices of the aforesaid dial, and s-llpped on an angular reduced end of said sleeve is a disk 26 having diametrically opposite sprung-tongues 26 engageable with the apertures inthe rack-wheel, whereby the disk becomes a clutch with which said rackwheel has slip engagement.

Arranged on the sleeve 24, between its flange and the hub of the rack-wheel, is a spiral-spring 27, and the coils 28 of an electro-magnet in connection with the standard 12are energized to separate said rack-wheel,

the lever is provided with a seat for a spiralspring 35 opposed by ascrew 36 that turns in'an arm '14 of the standard 14, a bindingnut 37 being provided on the screw.

stop screws 38 and 39 oppose the lever 30 in opposite directions, one of these screws being adjustable in the standard arm 14" and the other in the base 10 aforesaid.

A binding-nut 40 is provided onthe screw 38, and a similar nut 41 is provided on the screw 39. By means of the screws 38 and 39, the. throw of the lever 30 is regulated in opposite directions, its movement in one direction resulting from an energization of the magnet having the coils 32, and in the opa "p'osite direction .as a result of expansive force of the spring when said magnet is denergized.

In practice, it .is intended that the word In on the dials 16 shall be normally in view through the aperture 17 in the directory board and the front of the casing aforesaid.

. As thus far'described the general construction and arrangement of parts of a dial telegraph apparatus in accordance with my.

invention is for the most part similar to what isshown and described in the application for Letters Patent above noted. The

provided with an additional standard 42 vertically bored-to provide seats for spiral springs 43 and guides for plungers 44 supported on the springs. The standard 42 is 20 also provided with a vertically bored rear protuberance 42' that serves as a guide for a stem 45 fastened atits upper end ina rear upper horizontal flange 46 of an angular indicator-plate 46 having the inscription OutIn at thereon to be exposed through an aperture 47 inthe directory- 5 ."board 18 or thefront of the casing 19 aforesaid, this aperture being preferably alined 3 in each instance with the aperture 17 of said 30 boardior casing. The flange of the plate 46 "opposes the upper ends of the plungers 44,

and the lower end of the stem 45 is fashioned to-have angular engagement with a vertical longitudinal slot 48 in a lever 48 fulcrumed at one end on a pivot-screw 49 engaging the standard 42: Engaging the angular end of the stem, longitudinal side slots 50 of the lever and a vertical guide slot 42 in the improved apparatus has the base thereof standard 42 is 'a pin 51 by which said stem Apparatuses similar to that above specified are to be associated in pairs, one apparatus of each pair being arranged to have its dial and indicator-plate back of observa- .tion apertures in a directory-board in a public entrance hall or lobby of a building, and the other apparatus of the pair is to be arranged to have its dial and indicator-plate back of observation apertures in the front of a casing conveniently arranged in an apartment of the same building. The paired apparatu'ses have their magnets 32 in an elec-' trio-circuit, and the magnets 22 and 28 of said apparatuses are in another electriccircuit. The first of said circuits is shown controlled by a push-button A, and the other circuit is shown controlled by a push-button B, the push-buttons being conveniently posilevers meshed with rack-wheels 25 in clutchconnection with spindles 15. The circuit through the magnets 32 being broken, the levers 30 are automatically returned to normal position by reaction of springs 35, there being slip of the rack-wheels upon clutchdisks 26, but each dial remains in its adjusted position, because of the engagement of a detent 21 with the ratchet-wheel 20 on the spindle 'to which said dial is fastened. By successive operations of the push-button A, a step-by-step rotation imparted to the dials of the paired apparatuses until the desired index on each is brought to the reading point, the operator in the apartment aforesaid determining the reading of the dial at the directory-board by the reading of the other dial in the apartment where said pushbutton is located. To effect an automatic return of the dials to normal position the push-button B is actuated to close the elec-,

trio-circuit in which the magnets 22 and 28 are located, the result being a disengagement of the detent 21 from the ratchet-wheel 20 of each of the paired apparatuses, and a retraction of the rack-wheel 25 of each apparatus from the adjacent clutch-disk 26, whereupon there is a reaction of a previously wound spring 23 to impart the desired reverse movement to said dials. The electriccircuits above noted can be readily traced in Fig. 8, and the connections C, .D, and E of the wiring are also shown in Figs. 2, S and 9.

The dials of paired apparatuses will normally show In and being moved one step they will show Out. Hence at the directory board the mere presence or absence of an occupant of an apartment designated on said board may be indicated as is shown in Fig. 9. However if the occupant on leaving the apartment desires to indicate his presence there again at a certain hour, he efl'ects a rotary adjustment of the dials aforesaid until the designation for said hour is visible 129 at the directory board and casing, and coincident with said adjustment there is a movement of the cam 52 of each of the paired apparatuses to permit an automatic elevation of the indicator-plate 46 of each into register with an adjacent \lOW aper ture, the legend to the reader at the directory-board or'casing being ()utln at (the hour aforesaid say) 10 as is shown in Fig. 9, it being understood that the organread in line with some arbitrarily selected numeral on said dial at the view point.

It is Within the scope'of my invention, as herein claimed, to employ apparatuses similarto What is herein described at the directory board only, the push-buttons for control of the electric-circuits pertaining to each apparatus being located in a more or less distant apartment, and the one A operated,

according to a code,',to eflect a show of in-- formation at said directory, board.

I claim: g

1. A directory-board providedwith open ings adjacent to 'a designation thereon, a telegraph apparatus. comprising a dial having the Words In and Out, and the numerals 1 to 12 inclusive displayed thereon at regular intervals of a circle, the several indices being observable one at a time through one of the openings, of said board, electromechanical means under control at a distant point for imparting step-by-step rotary movement to the dial, means by which the dial is held to indefinitely expose an arbitrarily selected index thereon, electro-mechanical means for release and return of the dial to normal position, an adjustable plate having the inscription OutIn at'thereon, and means by which said plate is auto-,

matically adjusted in and out of register with another of the openmgs m the aforesaid board at predetermined times coin'ci dent with adjustments of the dial.

2. it directory-board provided with openings adjacent to a designation thereon, a casing distant from the board and having openings in its front, a pair of telegraph apparatuses, one back of the board and the other in the casing, and each comprising a dial having the words in and Out and the numerals 1 to 12 inclusive displayed thereon atregular intervals of'a circle, the several indices of the dial being observable one at a time through an adjacent opening of said board or casing, electromechanical means for ii'nparting step by step rotary movement to the dial, these means inboth apparatuses being in a circuit under control in proximity to said casing, means by which the dial of each appais is held to indefinitely expose an arselected index thereof, electroiical means for release and return of is to normal position, these means in i apparatuses being in another circuit also under control in proximity to the afore casing, adjustable plates each having the inscription 'C- utln at thereon; and means by which said plates are automati- 1 the rack-wheel cally adjusted in and out of register with adjacent openings of the aforesaid board and casing at predetermined times coincident with adjustments of the dials.

3. A telegraph apparatus comprising a spindle and its bearings, a ratchet-Wheel fast on the spindle, an electro-magnet provided with an armature having a detent-end engageable with the ratchet-Wheel, a spring- .controlled sliding rack-Wheel in clutch-con- .nectlon wlththe spindle, an electroanagnet by which to draw the rack-wheel out of clutch against spring resistance, a rack-lever engaging said rack-wheel, an electromagn'et havingthe armature thereof in connection with the lever,.a dial fast on said spindle and provided with indices at regular intervals of a circle thereon, means under control at a distant point for energizing the last named magnet separately and for simultaneously energizing the other two of the magnets,means foreffecting an automatic reverse movement of the spindle out of clutch with said rack-Wheel, a spring-controlled movable indicator plate, a lever in connection with the plate for adjusting the same against spring-resistance, and a leveractuating cam in connection with the aforesaid spindle.

4. A telegraph apparatus comprising a spindle and its bearings, a ratchet-wheel fast on the spindle, an electro-magnet provided with an armature having a detent-end engageable with the ratchet-wheel, a springcontrolled sliding rack-wheel in clutch-connection with the spindle, an electro-magnet by which to draw the rack-wheel out of clutch against spring resistance, a rack-lever engaging said rack-Wheel, an electro-magnet having the armature thereof in connection with the lever, a dial fast on said spindle and provided with indices at regular intervalsof a circle thereon, a pin extending from the spindle, a stop in the path of the pin to thereby prevent overrunning of the dial, means under control at a distant point for energizing the last namedmagnet sepa- 'tro-magnet provided with an armature having detent-end cngageable with the ratchet-wheel, a .spring-controlled sliding rack-Wheel in clutch co mecticn with the spindle, an electr c-ma t by which to draw of clutch against spring resistance, said e etro-magnets of both apparatuses being in the same circuit;- a racklever engaging rack-wheel, an electromagnet having ti. armature thereof in con nection with the lever, the lever actuating magnets of both apparatuses being in the same circuit distinct from the one aforesaid; a dial fast on said spindle and provided with indices at regular intervals of a circle thereon, means for eifecting an automatic reverse movement of the spindle out of clutch with said rack-wheeh'a spring-controlled 1novable indicator-plate, a lever in connection with the plate for adjusting the same against spring-resistance and a lever-actuating cam in connection with the aforesaid spindle.

6. A telegraph apparatus comprising a spindle and its bearings, electrically controlled mechanism for actuating the spindle in opposite directions, a standard provided with vertical bores, spiral-springs seated in the bores, plungers supported on the springs, an indicator-plate having an upper horizontal flange opposing the plungers, a stem connected to said flange and guided in a protuberance of said standard, alever having suitable play connection with the lower end of the stem, and means with the spindle for depressing the lever against resistance of the plunger-opposing springs.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wispresence of two witnesses.

, I Witnesses:

H. E. OLIII-IANT, DOWNEY. 

